| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ensure that [adj] [noun pl] | 595 |
|
| 2 | [verb] that environmental [noun pl] | 25 |
|
| 3 | ensure that environmental [noun] | 10 |
|
| 4 | ensure [conj] environmental [noun pl] | 9 |
|
| 5 | ensure [that] environmental [noun pl] | 9 |
|
| 6 | ensure that environmental [noun pl] | 9 |
|
